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Aliun [14]
2 years ago
13

The length of rectangle is represented by x and the width by y. The square of the diagonal of the rectangle is equal to the sum

of the squares of the length and the width. If the length is 25 meters and the diagonal is 45 meters, which quadratic equation could be used to determine the width of the rectangle?
Mathematics
2 answers:
maksim [4K]2 years ago
8 0
To solve this problem you must apply the proccedure shown below:

 1- You have the following information given in the problem above:

 - <span>The square of the diagonal of the rectangle is equal to the sum of the squares of the length and the width.
 - The length is 25 meters and the diagonal is 45 meters.

 2- Therefore, you have:

 x: diagonal of the rectangle.

 x^2=l^2+w^2

 3- You have:

 w^2+l^2-x^2=0
 w^2+(25)^2-(45)^2=0
 w^2-1400=0
 w=37.41

 The answer is: </span>w^2-1400=0
Artyom0805 [142]2 years ago
8 0

Answer:

B) 252 + y^2 = 452

Step-by-step explanation:

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Over [174]

Answer:

Length is 6 feet

Step-by-step explanation:

l=A

w=12

2=6

hope you get it right

8 0
3 years ago
-2/5x - 5 = -25<br><br> solve X QUICKKKKLY
cricket20 [7]

Answer:

50

Step-by-step explanation:

add 5 to -25 to get -2/5x by itself.

4 0
3 years ago
There are currently 17 frogs in a (large) pond. The frog population grows exponentially, tripling every 6 days. How long will it
Tema [17]

Answer:

t=11,11 days

Step-by-step explanation:

F=frogs poblation, t=time, be the variables dF/dt = KF, dF/F=Kdt, integrating \int\limits^ {} \, dF/F =K\int\limits^ {} \, dt⇒ LnF=Kt+c,F=ce^{Kt}; Knowing t=0, F=17 and t=6 F=51 (tripling every 6 days (17*3)), F=ce^{K0} = F=c=17; F=17e^{6K} =51⇒e^{6K} =51/17; K6=ln\frac{51}{17} ; K=ln\frac{51}{17}/6=0.183, so F=17e^{0,183t}, now if F=130, t=? we have:

130=17e^{0.183t} =e^{0.183t} =130/17; 0.183t=ln(130/17); t=ln(130/17)/0.183 = 11,11

8 0
3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Annika borrowed a book
ZanzabumX [31]

Answer:

Annika was 14 days late with her book.

Step-by-step explanation:

The first four days would cost Annika 1.0 dollar (4x0.25), then we need to divide the rest of the ammount by 0.30 to calculate for how many days she paid the 0.30 dollar fine.

4.00 - 1.00 = 3.00

3.00/0.30 = 10

Therefore, Annika was 4 +10 = 14 days late with her book.

6 0
3 years ago
Help
jenyasd209 [6]

Step-by-step explanation:

1) when x= 1/5

y = 1/5 + 1/2

y = 7/10

2) when x= 1/4

y = 1/4 + 1/2

y= 3/4

3) when x= 1/3

y = 1/3 + 1/2

y = 5 /6

3 0
3 years ago
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